Diagnosis
You want to remove a hierarchy name from the hierarchy. However, you canonly delete hierarchy names (and by doing so, remove them from thehierarchy). You cannot remove a hierarchy name without also deleting it.
Note:
For entities of the storage and use type
Not Changeable via MDG; No Generated Tables (3), the systemadministrator has to delete the hierarchy name directly from the valuetable being used.

Procedure
For hierarchy names to be deleted of entities of SU type 3,inform your system administrator.